To "call an audible" is when
you are on a date, or trying to pick someone up at a bar and the other party is not interested
in you. The uninterested party will
then "call an audible" on you by working in an interjection / rejection into
their dialog in order to possibly soften the blow of rejection. This will
to state their judgement on you, or their actual position without them
outright explaining to you that you need to back off.
(after a date, a buddy is talking to his friends and describes a meet up at a bar as follows):
Man 1: I met this girl at the bar, we had a few drinks, had a few laughs
and just when I thought things were going well
she totally called an audible (call an audible) on me!
Man 2: What?! That is messed
up. How'd she do it?
Man 1: We were talking about
different beers we liked and she said "Oh yeah
my boyfriend and I love Hefeweizen"